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, I I PACKING AND STORING VESSEL- 3 Patented Mar. 27, 1888,

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UNITED STATES PATENT OFFICE...

GEORGE D. COREY, OF LOWELL, MASsAoHUsETTs, ASSIGNOR, Y IEEGT AND MESNE ASSIGNMENTS, TO CHARLES M. HOSMER, OF SAME PL OE,

PACKING OR STORING-VESSEL.

SPECIFICATION forming part of Letters Patent No. 380,092, dated March 27, 1888.

Application filed- September 5, 1887. Serial No. 248,841. (No model.)

To all whom it may concern:

Be it known that I, GEORGE D. COREY, a citizen of the United States, residing at Lowell, in the county of Middlesex and Commonwealth of Massachusetts, have invented new and useful Improvements in Packing or Storing Vessels, of which the following is a specification.

My invention relates to packing or Storing vessels whose months are when in use closed hermetically; and it consists in the construction and combination of set forth.

My invention is illustrated in the accompanying drawings, in which Figure l is an elevation, partly in central vertical section, of a glue-can illustrating my invention. Fig. 2 is an elevation of the cover and cover-clamp of said glue-can. Fig. 3 is a partial plan of said cover and clamp, and Fig. 4 is a side elevation of said cover and clamp, showing the cover and the clamp in the position relative thereto-that is, taken when the cover is being forcibly pulled OK the can in order to make the contents accessible.

Similar reference-numbers refer to similar parts in all of the views.

The drawings illustrate a vessel intended to be used for holding liquid glue, and in the drawings 1 represents the main body of the vessel, in this case a can, which is provided with a neck or mouth-piece, 2. A portion of said mouth-piece is of the form of a frustum of a cone with its smaller base placed between the can and the larger base. This can is shown as made of thin sheet metal, and, for convenience in manufacture, the whole mouth-piece 2, in the example shown, is made in the form of the frustum of a cone, with the exception of an arrangement of its outlet, to be hereinafter described. This construction need not in all cases be followed, since, as will be apparent upon considering the purpose for which the conical portion 2 is used,.only a portion of said mouth-piece need be made in this upwardly-flaring shape.

In order to obtain asmooth and true mouth to the vessel, the metal forming the mouthpiece 2 is shown as being drawn in and then bent over, thus forming a rather sharp edge, 3, and an inwardly-projecting lip, 4. The

parts, as hereinafter edge 3 serves as a sort of valveseat upon which the cover 5 of the can rests, and the lip 4, which may'in some cases be dispensed with, Serves as a scraper, upon which a gluebrush may be cleaned, and to keep glue from the cover 5. Retained centrally, or nearly so, by the shield 6 upon the cover 5,- or by other suitable means, is the clamp 7, which forms an important feature of my invention. This clamp may be made in any one of many various forms, the important characteristic of its construction being a bar, 8, which extends across the cover of th spring-arms 9, which project-inwardly and engage with the upwardly-flaring portion of the mouth-piece 2. The clamp 7 is sometimes simply held in position upon the cover 5 by an open channel formed in its upper surface by striking up the metal or otherwise, as it is not in all cases necessary that the cover 5 and the clamp 7 should be fastened together.

I The cover is secured upon the edge 3 of the can by placing it thereon with the springor in a position a little above a horizontal one, and then rotating the said clamp about the axis of the bar 8 until it is in about the position in which it is shown in Fig. 1. During the latter part of this operation the springarms 9 are acted upon by the cone-shaped part of the mouth-piece 2in such a way as to spread them apart to some extent and also to draw down the cross-bar 8, and with it the cover 5,

e vessel, and the depending arms of the clamp 7 in a horizontal position,

forcing the latter firmly upon the sharpedge 3, thus sealing the can. An elastic ring may be placed over the edge3, or between the cover and the mouth-piece of the vessel, wheneverit is desirable to do so.

I prefer, although it is not always necessary,- to provide some means of preventing the clamp 7 from being. rotated too far in closing the can, which would loosen the cover again, and 1 illustrate in the drawings the means which I think is most desirable in a can of this class. This means is a curvedstop-bar, 10, of metal, reaching around the side of the mouth-piece 2 from the lower end of one spring-arm 9 to that of the other, as shown in the drawings, and which comes in contact with the side of the ves; sel or its mouth-piece when the spring-arms 9 have been carried a very little past the vertical position, as shown in Fig. 1. The action of the spring-arms 9 will then be to keep the bar 10 in contact with the side of the can or its mouth-piece and the cover 5 closely pressed against the top of the mouth-piece, while, on account of its curved form, the bar 10 serves by its elasticity to aid the spring-arms 9 in doing this. 7

When the clamp 7 is made in the form shown, I prefer to make it of a piece of round wire, bending it to the proper shape and properly brazing the ends together, thus making it of a single piece, although this construction is not always necessary or desirable.

Instead of the curved stop-bar 10, I sometimes make use of equivalent meansfor preventing the clamp 7 from being rotated too far when the cover is being secured to the can, several devices for this purpose being well known to those skilled in the art to which my invention relates.

I make the angle of inclination of an element of the conical frustum 2 such that the inward pressure of the springarms 9 will cause a continuous downward and elastic pressure upon the cover 5 by the bar 8, and I prefer to make the spri-ngarms 9 of a material which expands more with a given rise of temperature than the vessel does, since in both these cases there is always a tendency to hold the cover tightly to the mouth of the can.

When the vessel is made of glass,the clamp 7 may be made of any suitable metal; but when the vessel is made of iron the clamp is preferably, though not necessarily, made of some of the copper alloys on account of the different degrees of expausibility of these substances.-

I do not desire to limit myself to using this vessel for packing glue alone or to making said vessel of sheet metal, since I desire to sometimes make it of glass or pottery-Ware, nor do I desire to limit myself to producing the continuous elastic pressure of the cover upon the mouth-piece of the vessel by the precise form of spring that is illustrated, since I am aware that other forms may be equivalently substituted therefor.

What I claim as new, and desire to secure by Letters Patent, is

1. The combination,with a packing or storing vessel, of a mouth-piece, a portion of which is made up of a conical frustum with its smaller base next to the said vessel, a cover closely fitting the end of said mouth-piece, and a rocking bar across the said cover provided with inwardly-projecting spring-arms at its ends, which engage with said conical frustum, and thereby cause said bar to press said cover upon said mouth -piece with a continuous elastic pressure acting in a directiontoward said mouth-piece, substantially as described, and for the purposes specified.

2. The combination, with a packing or storing vessel, of a mouth-piece,a portion of which is made up of a conical frustum with its smaller base next to the said vessel, a'cover closely fitting the end of said mouth-piece, a rocking clamp provided with a cross-bar which rests upon said cover and is pressed against the same with a continuous elastic pressure by inwardlyprojecting spring-arms, which depend from the ends of said cross-bar and engage with said conical frustum, and a stop to prevent the said clamp from rocking too far when the cover is forced into place thereby,substantially as described,and for the purposes specifled.

3. The glue-can, which consists of the main glue-containing body having the mouth-piece, a portion of which is a conical frustum with its smaller base nextto the said body,and has a seat for the cover, and is also provided with the inwardly-projecting brush-cleaning and liquid-retaining lip, a cover fitting upon said seat, a cross-bar resting upon said cover, inwardly-projecting and depending spring-arms at the end of said cross-bar, which engage with said conical frustum, and thereby press said cross-bar against said cover with a continuous elastic pressure, and the elastic stopbar connecting the ends of said spring-arms, substantially as described, and for the purposes set forth.

GEORGE D. COREY.

Witnesses:

F. E. RoLLINs, C. H. FISHER. 

